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Ultra-high-speed flywheel made of graphene fiber composite material, as well as preparation method and application of graphene fiber composite material

A graphene fiber and composite material technology, which can be used in the fields of fiber chemical characteristics, spinning solution preparation, chemical instruments and methods, etc., and can solve problems such as inability to be widely used

Inactive Publication Date: 2018-05-25
北京雷恩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solar energy, wind energy, tidal energy, and wave energy all have storage problems. At present, they mainly rely on chemical batteries, but due to the restriction of the life and efficiency of chemical batteries, they have not been widely used so far. The above problems have prompted people to seek a high-efficiency, Green energy storage device with long service life, large energy storage, convenient use and no pollution

Method used

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  • Ultra-high-speed flywheel made of graphene fiber composite material, as well as preparation method and application of graphene fiber composite material
  • Ultra-high-speed flywheel made of graphene fiber composite material, as well as preparation method and application of graphene fiber composite material
  • Ultra-high-speed flywheel made of graphene fiber composite material, as well as preparation method and application of graphene fiber composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0119] Embodiment 1 prepares semi-coke lignin

[0120] 1. Crushing of wood raw materials

[0121] Get dry woody raw material poplar branch and pulverize into woody raw material powder (poplar branch powder), the particle diameter of poplar branch powder≤1cm;

[0122] In the specific embodiment of the present invention, woody raw materials are described with poplar branches as raw materials, and other woody raw materials are applicable to the present invention, for example, crop straw, waste paper, wooden furniture, wood, etc.

[0123] 2. The first acid hydrolysis treatment

[0124] The poplar branch powder is placed in the first reaction tank that is equipped with the phosphoric acid solution of 5% by mass percent concentration, and the poplar branch powder is mixed with the catalyst phosphoric acid solution, wherein the weight ratio of the poplar branch powder to the catalyst is 2-7: 100 (preferably 4:100); then close the reaction tank, and heat up (in the embodiment of the...

Embodiment 2

[0132] 1. Preparation of graphite

[0133] 1A. Accurately weigh semi-coke lignin (0.5kg) and place it in a high-temperature carbonization furnace, heat up until the temperature reaches and maintains 900°C, and carry out carbonization treatment under the condition that the temperature is maintained at 900°C to obtain carbon powder ( 0.301kg), wherein the heating rate of the carbonization treatment is 10°C / min, and the carbonization treatment time is 45min;

[0134] 1B. Place the prepared carbon powder in a graphitization furnace, heat up to a temperature of 2100°C and keep it at 2100°C, and then pass nitrogen gas into it for protection, and carry out graphitization treatment to obtain a synthetic Graphite (0.251kg), wherein the heating rate of graphitization treatment is 10°C / min, and the time of graphitization treatment is 12min

[0135] 2. Preparation of graphene oxide

[0136] 2A. Add the synthetic graphite (0.251kg) prepared in the step 1) that was accurately weighed into...

Embodiment 3

[0160] 1. Preparation of graphite

[0161] 1A. Accurately weigh semi-coke lignin (0.5kg) and place it in a high-temperature carbonization furnace, heat up until the temperature reaches and maintains 1000°C, and carry out carbonization treatment under the condition that the temperature is maintained at 1000°C to obtain carbon powder ( 0.301kg), wherein the heating rate of the carbonization treatment is 15°C / min, and the carbonization treatment time is 35min;

[0162] 1B. Place the prepared carbon powder in a graphitization furnace, heat up to a temperature of 2400°C and keep it at 2400°C, and then pass nitrogen gas into it for protection, and carry out graphitization treatment to obtain a synthetic Graphite (0.252kg), wherein the heating rate of the graphitization treatment is 15°C / min, and the graphitization treatment time is 10min.

[0163] 2. Preparation of graphene oxide

[0164] 2A. Add the synthetic graphite (0.252kg) prepared in the step 1) that was accurately weighed ...

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Abstract

The invention belongs to the field of materials and electric vehicle energy manufacturing, and relates to a preparation method of a graphene composite material used for manufacturing flywheel parts ofultra-high-speed flywheel batteries for electric vehicles. The graphene fiber composite material is prepared from carbocoal lignin generated by secondary catalytic hydrolysis reaction as a raw material by carbonization treatment, graphitization treatment, electrolytic oxidation treatment, wet spinning treatment, reduction treatment and wet winding treatment sequentially. The flywheel made of thegraphene fiber material has the characteristics of light weight, high tensile strength, long service life at high speed and the like, and a flywheel battery prepared from the graphene fiber material has the characteristics of being high in specific power, long in cycle life, quick to charge, maintenance-free and the like, and can be used as an energy source of an electric vehicle alone or as an auxiliary energy source, and is a high-end energy source of the electric vehicle.

Description

technical field [0001] The invention belongs to the field of electric vehicle energy source manufacturing, and relates to a production method of a graphene composite material ultra-high-speed flywheel. Background technique [0002] Electric vehicles using chemical batteries have been experimented with for decades, but have not yet entered the practical stage. Solar energy, wind energy, tidal energy, and wave energy all have storage problems. At present, they mainly rely on chemical batteries, but due to the restriction of the life and efficiency of chemical batteries, they have not been widely used so far. The above problems have prompted people to seek a high-efficiency, It is a green energy storage device with long service life, large energy storage, convenient use and no pollution. The ultra-high-speed flywheel battery is a new concept battery proposed in the 1990s. It breaks through the limitations of chemical batteries and uses physical methods to store energy. As we ...

Claims

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Application Information

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IPC IPC(8): C08L71/02C08K7/06C08G65/22D01F9/12D01F1/10D01F11/10D01F11/16D01D5/06D01D1/02C01B32/205
Inventor 孙家伟王静颉二旺
Owner 北京雷恩新材料科技有限公司
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